... voltage start,high performance,wired buzzer,smt buzzer,rohs SPECIFICATIONSTypeKLS3-M-9540MT01KLS3-M-9540MT03Min.Sound Pressure Level(dB)80/1.5Vdc/10cm85 ... -30~+85Weight(g)0.80.8Case Marerial/ColourPPS/Black KLS3-M-9540 Magnetic buzzer/acoustic component/magnetic transducer